I use USPS almost exclusively for ebay stuff. Back during the "panic of 2012" I was selling ar magazines and brass as fast as I could ship them. 10 mags in a medium flat rate box and had several orders go from here to New Mexico or that General side of the country in 2 days from my box to theirs. Never a problem. Gonna ship out some broadheads in the morning, now that I've talked them up, watch em not make it to where they are headed
I bet those newbs now looking at piles of Pmags they've bought for $20 each.